Jojoba oil is the most popular carrier for roller blends because it closely mimics skin sebum, absorbs cleanly, and has a shelf life of two or more years without rancidity. Fractionated coconut oil is lightweight and odourless, ideal for blends where the essential oil scent should dominate. Sweet almond and grapeseed oils add slip and skin-conditioning but have shorter shelf lives (6–12 months). An experienced aromatherapy formulator on AJ Cosmo Labs can recommend the best carrier for your specific essential oil blend and target skin type.
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